National Museum of Nuclear Science & History
J. P. Clark worked for the Roane-Anderson Company.
Preston Veltman was an American chemist. Veltman was born in Grand Rapids, Michigan. He studied at Michigan Technological University, and earned a Ph.
John Wlodarski served in the 603rd Air Engineering Squadron.
Jack Pierard was a communications clerk in the Hanford Engineering Works from January 1944 through the end of the war.
